Leases - Schedule of finance lease liabilities (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Leases [Abstract] | ||
| Current portion of finance lease liability | $ 4.2 | $ 2.7 |
| Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Other current liabilities | Other current liabilities |
| Non-current portion of finance lease liability | $ 18.2 | $ 15.1 |
| Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other non-current liabilities | Other non-current liabilities |
| Total finance lease liability | $ 22.4 | $ 17.8 |